18 |
18 |
19 The unit is quite capable, since the main CPU is a 68000 (not exactly |
19 The unit is quite capable, since the main CPU is a 68000 (not exactly |
20 of small CPU for the time). |
20 of small CPU for the time). |
21 |
21 |
22 .. image:: {static}/images/hp3562a/cpu.jpg |
22 .. image:: {static}/images/hp3562a/cpu.jpg |
|
23 :alt: Picture of the main 68000 CPU of the HP3562A |
23 |
24 |
24 The 8 boards are: |
25 The 8 boards are: |
25 |
26 |
26 - A1: Digital source and front-end interface (rev B, ref: 03562-66501) |
27 - A1: Digital source and front-end interface (rev B, ref: 03562-66501) |
27 - A2: CPU & GPIB controller (rev D, ref: 03562-66502) |
28 - A2: CPU & GPIB controller (rev D, ref: 03562-66502) |
50 This board is mainly responsible for generating the digital signals |
51 This board is mainly responsible for generating the digital signals |
51 that are used as input for the source DAC. It generates all sort of |
52 that are used as input for the source DAC. It generates all sort of |
52 noise figures, bursts, sweeps, and so on. |
53 noise figures, bursts, sweeps, and so on. |
53 |
54 |
54 .. image:: {static}/images/hp3562a/a1_digital_source.jpg |
55 .. image:: {static}/images/hp3562a/a1_digital_source.jpg |
|
56 :alt: Picture of the A1 Digital Source PCB of the HP3562A |
55 |
57 |
56 The Timing Control section looks like: |
58 The Timing Control section looks like: |
57 |
59 |
58 .. image:: {static}/images/hp3562a/hp3562a_a1_timing_control_circuit.png |
60 .. image:: {static}/images/hp3562a/hp3562a_a1_timing_control_circuit.png |
59 :alt: A1 Timing Control block diagram |
61 :alt: A1 Timing Control block diagram |
90 The processing unit is a MC68000. It aims at telling each assembly |
92 The processing unit is a MC68000. It aims at telling each assembly |
91 which process to execute and monitor the overall functionning and data |
93 which process to execute and monitor the overall functionning and data |
92 processing of the instrument. |
94 processing of the instrument. |
93 |
95 |
94 .. image:: {static}/images/hp3562a/hp3562a_a2_block_diagram.png |
96 .. image:: {static}/images/hp3562a/hp3562a_a2_block_diagram.png |
|
97 :alt: Blocke diagram of the A2 board of the HP3562A |
95 |
98 |
96 The main CPU board, with the beautiful MC68000P9 DIP64 package: |
99 The main CPU board, with the beautiful MC68000P9 DIP64 package: |
97 |
100 |
98 .. image:: {static}/images/hp3562a/a2_cpu.jpg |
101 .. image:: {static}/images/hp3562a/a2_cpu.jpg |
|
102 :alt: Picture of the A2 CPU board of the HP3562A |
99 |
103 |
100 It comes with 2 populated M5M256BP static ram chips (32k x 8bits), for |
104 It comes with 2 populated M5M256BP static ram chips (32k x 8bits), for |
101 the CPU, but seems to be capable of holding 4 more of them. The CPU |
105 the CPU, but seems to be capable of holding 4 more of them. The CPU |
102 runs at 8MHz. |
106 runs at 8MHz. |
103 |
107 |
114 |
118 |
115 Memory |
119 Memory |
116 ------ |
120 ------ |
117 |
121 |
118 .. image:: {static}/images/hp3562a/a38_memory.jpg |
122 .. image:: {static}/images/hp3562a/a38_memory.jpg |
|
123 :alt: Picture of the A36 memory board of the HP3562A |
119 |
124 |
120 This board is described as an "extension of the read only memory of |
125 This board is described as an "extension of the read only memory of |
121 the system CPU board" and read/write memory used by most of the other |
126 the system CPU board" and read/write memory used by most of the other |
122 assemblies. |
127 assemblies. |
123 |
128 |
124 .. image:: {static}/images/hp3562a/hp3562a_a38_memory_block_diagram.png |
129 .. image:: {static}/images/hp3562a/hp3562a_a38_memory_block_diagram.png |
|
130 :alt: Block diagram of the A38 memory board of the HP3562A |
125 |
131 |
126 The ROM section stores most programs for the HP 3562A except the |
132 The ROM section stores most programs for the HP 3562A except the |
127 startup routines (which are on the ROM ships of the A2 CPU |
133 startup routines (which are on the ROM ships of the A2 CPU |
128 bloard). |
134 bloard). |
129 |
135 |
130 The board allows flexibility in the number and type of ROM chipes |
136 The board allows flexibility in the number and type of ROM chipes |
131 used. ROM density is selected by placement of jumpers. |
137 used. ROM density is selected by placement of jumpers. |
132 |
138 |
133 .. image:: {static}/images/hp3562a/hp3562a_a38_rom_block_diagram.png |
139 .. image:: {static}/images/hp3562a/hp3562a_a38_rom_block_diagram.png |
|
140 :alt: Block diagram of the RAM/ROM selection mecanism on the A38 board of the HP3562A |
134 |
141 |
135 |
142 |
136 The RAM section of the assembly consist of 4 32k by 8 bits static RAM |
143 The RAM section of the assembly consist of 4 32k by 8 bits static RAM |
137 chips as well as the arbitrer section which controls access requests |
144 chips as well as the arbitrer section which controls access requests |
138 to the global RAM from six devices (FFT, both Digital Filters, |
145 to the global RAM from six devices (FFT, both Digital Filters, |
139 Display, FPP and the system CPU). |
146 Display, FPP and the system CPU). |
140 |
147 |
141 .. image:: {static}/images/hp3562a/hp3562a_a38_ram_block_diagram.png |
148 .. image:: {static}/images/hp3562a/hp3562a_a38_ram_block_diagram.png |
|
149 :alt: Block diagram of the memory bus pipeline of the HP3562A |
142 |
150 |
143 The Display Controller section also lies on this A38 board. |
151 The Display Controller section also lies on this A38 board. |
144 |
152 |
145 .. Note:: On older versions of the instruments, this board was |
153 .. Note:: On older versions of the instruments, this board was |
146 splitted in 2 (A3 and A8) and used less dense chips (thus, much more |
154 splitted in 2 (A3 and A8) and used less dense chips (thus, much more |
152 |
160 |
153 The Local Oscillator produces digital sin and cosine signals |
161 The Local Oscillator produces digital sin and cosine signals |
154 (synchronized with the sample rate). The sinusoidal signal is |
162 (synchronized with the sample rate). The sinusoidal signal is |
155 generated from a table of values stored in the ROM. |
163 generated from a table of values stored in the ROM. |
156 |
164 |
157 .. image:: {static}/images/hp3562a/hp3562a_a4_block_diagram.png |
165 .. figure:: {static}/images/hp3562a/hp3562a_a4_block_diagram.png |
158 |
166 :alt: Block diagram of the A4 local oscillator board of the HP3562A |
159 .. image:: {static}/images/hp3562a/a4_loc.jpg |
167 |
|
168 Block diagram of the A4 local oscillator board of the HP3562A |
|
169 |
|
170 |
|
171 .. figure:: {static}/images/hp3562a/a4_loc.jpg |
|
172 :alt: Picture of the A4 bloard of the HP3562A |
|
173 |
|
174 Picture of the A4 bloard of the HP3562A |
160 |
175 |
161 |
176 |
162 |
177 |
163 Digital Filter and Digital Filter Controller |
178 Digital Filter and Digital Filter Controller |
164 -------------------------------------------- |
179 -------------------------------------------- |
242 |
257 |
243 |
258 |
244 FFT |
259 FFT |
245 --- |
260 --- |
246 |
261 |
247 .. image:: {static}/images/hp3562a/hp3562a_a9_block_diagram.png |
262 .. figure:: {static}/images/hp3562a/hp3562a_a9_block_diagram.png |
|
263 :alt: Block diagram of the A9 FFT board of the HP3562A |
|
264 |
|
265 Block diagram of the A9 FFT board |
248 |
266 |
249 The FFT board performs windowing, FFT and Inverse FFT directly from |
267 The FFT board performs windowing, FFT and Inverse FFT directly from |
250 and to the RAM. |
268 and to the RAM. |
251 It's built around a TMS230 microprocessor runningat 5MHz |
269 It's built around a TMS230 microprocessor runningat 5MHz |
252 |
270 |
253 .. image:: {static}/images/hp3562a/a9_fft.jpg |
271 .. figure:: {static}/images/hp3562a/a9_fft.jpg |
|
272 :alt: Picture of the A9 FFT board of the HP3562A |
|
273 |
|
274 Picture of the A9 FFT board |
|
275 |
254 |
276 |
255 |
277 |
256 Keyboard |
278 Keyboard |
257 -------- |
279 -------- |
258 |
280 |
259 .. image:: {static}/images/hp3562a/hp3562a_a15_block_diagram.png |
281 .. figure:: {static}/images/hp3562a/hp3562a_a15_block_diagram.png |
|
282 :alt: Block diagram of the keyboard processor |
|
283 |
|
284 Block diagram of the keyboard processor |
260 |
285 |
261 |
286 |
262 Next |
287 Next |
263 ==== |
288 ==== |
264 |
289 |